Ongoing project - Full Restauration SC24 1989
Thread Starter
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Member
Joined: Oct 2023
Posts: 35
Likes: 3
Ok guys, thought it's time to keep you updated.
Had not much time lately for the bike. Now that I found out about the f*** balancer shaft, I am confident enough to go on. Sound is great.
Engine-wise I will it keep it that way for the time being. I have set the idle mixture screws to 2.5 turns out on each carb. Engine runs for several minutes on 1200rpm. Checking on the plugs I noticed the following: Cyl 1 plus was very dark. Black! Not wet but black. Cyl 2 was also black but tending to greyish. Cyl 3 was black/grey with a very light grey anode (is it the anode, the hook-like thing at the very bottom?). Cyl 4 was like Cyl 2.
The compression from 1-4 was 11.7-10.8-11-10.5 bar. A little too much unbalanced I guess.
I tried to sync the carbs beforehand using both a "4-meter-tool" and a self-made bottle thing for checking on 1 and 2 and then for 3 and 4 and again on 2 and 3. Its not perfect but works ok I think.
After that I sanded and painted all black brake and clutch parts (master cylinders and slaves as well as the calipers). Also glass sanded the silver brake parts. They look shiny again and will not be painted.
Frame at the back as well as swing arm and the front-attached frame part are painted as well. The forks are next. 89 model has 2 identical forks. I ordered sealings, dust caps and the expensive Honda bushings for the fork tubes. I have to check if there are still the original springs installed. Maybe I will change them to sth better (Wirth, Wilbers, Promoto). I am planning to use 10w fork oil.
I will send new video soon.
thanks
Had not much time lately for the bike. Now that I found out about the f*** balancer shaft, I am confident enough to go on. Sound is great.
Engine-wise I will it keep it that way for the time being. I have set the idle mixture screws to 2.5 turns out on each carb. Engine runs for several minutes on 1200rpm. Checking on the plugs I noticed the following: Cyl 1 plus was very dark. Black! Not wet but black. Cyl 2 was also black but tending to greyish. Cyl 3 was black/grey with a very light grey anode (is it the anode, the hook-like thing at the very bottom?). Cyl 4 was like Cyl 2.
The compression from 1-4 was 11.7-10.8-11-10.5 bar. A little too much unbalanced I guess.
I tried to sync the carbs beforehand using both a "4-meter-tool" and a self-made bottle thing for checking on 1 and 2 and then for 3 and 4 and again on 2 and 3. Its not perfect but works ok I think.
After that I sanded and painted all black brake and clutch parts (master cylinders and slaves as well as the calipers). Also glass sanded the silver brake parts. They look shiny again and will not be painted.
Frame at the back as well as swing arm and the front-attached frame part are painted as well. The forks are next. 89 model has 2 identical forks. I ordered sealings, dust caps and the expensive Honda bushings for the fork tubes. I have to check if there are still the original springs installed. Maybe I will change them to sth better (Wirth, Wilbers, Promoto). I am planning to use 10w fork oil.
I will send new video soon.
thanks
Senior Member
Joined: Dec 2016
Posts: 107
Likes: 22
From: Woolgoolga, Australia
Original fork springs are quite soft. RaceTech sell some stiffer ones. You have to use less spring preload with stiffer springs.
I like the Racetech springs that I have put on my '92.
I like the Racetech springs that I have put on my '92.
Thread Starter
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Member
Joined: Oct 2023
Posts: 35
Likes: 3
Alright, thanks. I now have the problem, that I can't get the steering stem apart. the 89 SC24 only has one big nut on top. This is off.Now I would normally just pull the aluminum key lock plate away and slide the stem out downside. It is bullet proof. Does not move a bit. Any ideas?